tcpdump mailing list archives
Re: How does packet capture interact with
From: Robert Burgess <burgess () systems cs cornell edu>
Date: Thu, 24 Sep 2009 10:04:28 -0400
you somehow have to make sure that the kernel doesn't deal with packets you want to take care of. If you don't, it will reset TCP connections and reply with ICMP port unreachable messages to UDP datagrams etc.
Yes, that is a problem; I was handling it by having the OS firewall (whatever it is) drop those packets I intend to handle. In my application I can get away with leaving that firewall setup to an administrator so my code can be OS-independent. Robert. - This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
Current thread:
- How does packet capture interact with firewalls? Robert Burgess (Sep 23)
- Re: How does packet capture interact with firewalls? Phil Vandry (Sep 23)
- Re: How does packet capture interact with firewalls? Robert Burgess (Sep 23)
- Re: How does packet capture interact with Robert Burgess (Sep 23)
- Re: How does packet capture interact with firewalls? Phil Vandry (Sep 23)
- Re: How does packet capture interact with firewalls? Robert Burgess (Sep 23)
- Re: How does packet capture interact with Aaron Turner (Sep 23)
- Re: How does packet capture interact with Tillmann Werner (Sep 24)
- Re: How does packet capture interact with Robert Burgess (Sep 24)
- Re: How does packet capture interact with Aaron Turner (Sep 24)
- Re: How does packet capture interact with Robert Burgess (Sep 24)
- Re: How does packet capture interact with Aaron Turner (Sep 24)
- Re: How does packet capture interact with firewalls? Robert Burgess (Sep 23)
- Re: How does packet capture interact with firewalls? Phil Vandry (Sep 23)
- Re: How does packet capture interact with Robert Burgess (Sep 24)